catalogue surge arresters limiters 3ee 3ef en
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3EE Surge Arresters
3EF Surge LimitersMedium-Voltage EquipmentCatalog HG 21 2007
Invalid:
Catalog HG 21.2.3 1999
Catalog HG 21.2.7 1998
Contents Page
DescriptionGeneral
Construction and mode of operation of 3EE arresters
Construction and mode of operation of 3EF limiters
Dielectric strength
Standards
56
7
10
12
12
Equipment SelectionOrdering data and configuration example
Selection of 3EE arresters
Accessories for arresters
Selection of 3EF limiters
1314
15
21
22
Technical DataElectrical data, dimensions and weights
Arresters
Electrical data, dimensions and weights
Limiters
23
24
27
3EE Surge Arresters3EF Surge Limiters
Contents
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DescriptionContents
Contents Page
Description
General
Construction and mode of operation of
3EE arresters:
Application
Construction
Mode of operation
InstallationMonitoring
Selection criteria
Construction and mode of operation of
3EF limiters:
Application
Construction and mode of operationInstallation
Selection criteria
Dielectric strength
Standards
5
6
7
7
8
89
9
10
1010
11
12
12
R-HG11-174.t
if
Industrial application: Refinery
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3EE surge arresters
1
Surge arresters and limiters The Indispensable
DescriptionGeneral
3EF surge limiters
R-HG21-101.eps
R-HG21-102.eps
Surge arresters and surge limiters are used for protection
of motors, generators and transformers against internal
and external overvoltages. Thus, they are an indispen-
sable protection device for safe operation of medium-
voltage switchgear. Their application makes sure that
the arising overvoltages do not exceed the permissible
withstand voltages of the equipment to be protected.
So, their action in the power system is confined to the
limitation of lightning and switching overvoltages. Apart
from that they are passive devices.
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Construction and mode of operation of3EE arresters
Application
For protection of sensitive equipment such as rotating
machines or other devices with windings in air against
switching overvoltages and atmospheric overvoltages,
special arresters are available. They stand out due to low
protection levels and a fine grading of the rated voltage.
For generator protection, designs with a short-circuit current
capability up to 300 kA are available. The arresters can be
used in AC power systems from 48 Hz to 62 Hz, and both
in outdoor and indoor installations for site altitudes up to
1,000 m.
The decisive factor for protection against switching
overvoltages is the residual voltage at an impulse current of0.5 A waveshape 30/60. This residual voltage value is the
protection level the switching overvoltages are limited to. If
power is supplied through an overhead line, additional surge
arresters, e.g. type 3EK7, must be installed at the entrance
of the overhead line in order to avoid the residual voltages
appearing at higher discharge currents.
Construction
The active elements of the arrester are metal-oxide resistors(6), which are installed in a hermetically sealed porcelain
housing (1). The flanges with integrated gas diverting
nozzles (2) are made of an outdoor-resistant light metal
alloy, and are cemented with the porcelain housing.
Long-time tightness is achieved by means of weather-proof
and ozone-resistant seals (3) as well as corrosion-resistant
metal diaphragms (4). Each component is equipped with
pressure relief devices and gas diverting nozzles at both
ends.
In the very seldom case of overload, these pressure relief
devices open at a pressure of 20 % of the pressure resistance
DescriptionConstruction and mode of operation of 3EE arresters
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Mode of operation
Metal-oxide resistors are strongly non-linear, i.e. they have a
strongly curved current-voltage characteristic, so that
below a certain voltage only a small leakage current flows.
The arresters are designed in such a way that only the small
leakage current flows at the continuous operating voltage
applied in normal operation.
When lightning or switching overvoltages occur, the resistors
become very conductive. This makes an impulse current flow
to earth, reducing the overvoltage to the value of the
voltage drop at the arrester (residual voltage). Thereby, the
impulse currents can be up to 1 kA in the case of switching
overvoltages and from 1 kA to 20 kA in case of lightning
overvoltages.
If the switching overvoltages can reach impermissibly highvalues, the arresters must be designed to limit the over-
voltages to permissible values, both between phases (L-L)
and to earth (L-E). The target is to manage with three
arresters in phase-to-earth connection. If this is not possible,
a 6-arrester connection must be provided.
Installation
Normally, arresters are mounted in vertical position and with
the high-voltage terminal at the top. If the constructionrequires this, the devices can also be installed in suspended
or horizontal position.
When ordering, these special installation conditions as
well as the 6-arrester connection must be specified in
clear text as a special version.
DescriptionConstruction and mode of operation of 3EE arresters
6-arrester connection
Mode of operation of metal-oxide arresters
Arresters in phase-to-earth connection
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Monitoring
The arresters do not require any monitoring or maintenance.
The frequency of operation of the surge arresters as well as
the magnitude of the discharge currents and the type of
possible overvoltages can be determined by installation of
a tell-tale spark gap 3EX6040 in the earthing cable.
Selection criteria
The opposite table offers an overview of typical arresters for
the typical system voltages defined in the IEC standards.
For differing system voltages or intermediate values, the
selection condition applicable to the respective type of
power system must be complied with. The short-circuit
current capability to be selected for the arrester must be
greater than or equal to the maximum short-circuit current
occurring in the power system.The following selection conditions apply to the different
power systems:
System with solidly earthed neutral
Uc 1.05 x ULE= 1.05 xUm
3x (for = 1.0)
System with impedance-earthed neutral
Uc ULE=Um
3x =
Um
125.(for = 1.4)
System with isolated neutral
Uc ULE=Um
3x = Um (for = 1.73)
System with resonant-earthed neutral
Uc ULE=Um
3x = Um (for = 1.73)
Uc Continuous operating voltage
DescriptionConstruction and mode of operation of 3EE arresters
Maximumvoltage forequipment
System withsolidly earthedneutral
System withimpedance-earthedneutral
System withisolatedneutral
System withresonant-earthedneutral
Um
kV
3.6 3EE2 056 3EE2 056 3EE2 056 3EE2 056
7.2 3EE2 056 3EE2 075 3EE2 090 3EE2 090
12 3EE2 120 3EE2 120 3EE2 150 3EE2 150
17.5 3EE2 150 3EE2 190 3EE2 230 3EE2 230
24 3EE2 190 3EE2 230 3EE2 300 3EE2 300
36 3EE2 270 3EE2 340 3EE2 450 3EE2 450
40.5 3EE2 340 3EE2 450
Typical 3EEarresters for systemvoltages
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DescriptionConstruction and mode of operation of 3EF limiters
Construction and mode of operation of3EF limiters
Application
3EF1 surge limiters are used in cable systems up to 15 kV.
For power stations and extensive cable systems, surge
limiters type 3EF3 should be used, as they have a higher
energy absorption capacity and a lower, i.e. better,
protection level.
If the cable system is interconnected with overhead lines,
one set of surge arresters, e.g. type 3EK7, must be provided
at each point of transition between the cable and the
overhead line.
Construction and mode of operation
The housing is made of plastic. Inside, spark gaps and non-linear resistors are connected in series. These active inner
parts are hermetically sealed against the outer atmosphere.
For connection at both ends, threaded bolts are used.
The spark gap has a low sparkover voltage, and separates
the non-linear resistor from the power system during normal
operation.
A metal-oxide varistor with a strongly curved current-voltage
characteristic is used as a resistor. As the voltage rises, the
current flow through the varistors increases overproportion-
ally, decreasing accordingly as the voltage drops. Due to
these properties, the surge limiter already operates at an
early stage when an overvoltage occurs, and limits it to low
values.
In contrast to type 3EF1, the surge limiter type 3EF3 is
equipped with a pressure relief device which prevents the
housing from tearing open in the extremely seldom case of
overload.
Installation
Surge limiters can be mounted in any position. They are
3EF1 surge limiter
R-HG21-103.eps
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Description
Construction and mode of operation of 3EF limiters
Selection criteria
Which surge limiter must be selected largely depends on the
factors energy absorption capacity and overload
performance. The limiters of the type series 3EF3 can
absorb up to 5 times the energy of those of the 3EF1 series.
The magnitude of the necessary energy absorption capacity
must be determined in a network calculation.In case of overload, which cannot be excluded in the case of
intermittent earth-faults, the housing of 3EF1 limiters can be
torn open and the arc can escape. Limiters type 3EF3 have
integrated rupture diaphragms which tear open in order to
protect the housing from pressure damages. The gases
escaping as the pressure is relieved are deflected to the
outside due to the shape of the aluminium cap, and this
ignites an arc between the counter electrode and the cap.
The arc resulting from an overload burns until the circuit is
interrupted by the upstream overcurrent protection devices.
Surge limiters which failed due to overload must be
replaced.
The opposite table offers an overview of typical limiters for
motor protection for typical rated motor voltages. For
differing rated motor voltages or intermediate values, the
following selection condition applicable to the respective
type of power system must be complied with in order to
select a suitable limiter:
Ur Um
Um Maximum system voltageUr Rated voltage
1
Maximumvoltage forequipment
System withsolidly earthedneutral
System withimpedance-earthedneutral
System withisolatedneutral
System withresonant-earthedneutral
Um
kV
3.6 3EF1036-0A3EF3 036-0
3EF1 036-0A3EF3 036-0
3EF1 036-0A3EF3 036-0
3EF1 036-0A3EF3 036-0
4.8 3EF1048-0A3EF3 048-0
3EF1 048-0A3EF3 048-0
3EF1 048-0A3EF3 048-0
3EF1 048-0A3EF3 048-0
7.2 3EF1072-0A3EF3 072-0
3EF1 072-0A3EF3 072-0
3EF1 072-0A3EF3 072-0
3EF1 072-0A3EF3 072-0
12 3EF1 1 20-1 3EF1 1 20-1 3EF1 1 20-1 3EF1 1 20-115 3EF1 150-0A 3EF1 150-0A 3EF1 150-0A 3EF1 150-0A
Typical 3EFlimiters for rated motor voltages
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DescriptionDielectric strength and standards
Dielectric strength
The dielectric strength of air insulation decreases with
increasing altitude due to low air density. According to
IEC 60694, the rated lightning impulse withstand voltage
values specified in the chapter Technical Data apply to a
site altitude of 1000 m above sea level. For an altitude above
1000 m, the insulation level must be corrected according tothe opposite diagram.
The characteristic shown applies to the rated short-duration
power-frequency withstand voltage and the rated lightning
impulse withstand voltage.
To select the devices, the following applies:
U U0x KaU Rated withstand voltageunder standard reference atmosphere
U0 Rated withstandvoltage requested forthe place of installationKa Altitude correctionfactor according to the opposite diagram
Example
For a requested rated lightning impulse withstand voltage
of 75 kV at an altitude of 2500 m, an insulation level of
90 kV under standard reference atmosphere is required as a
minimum:
90 kV 75 kV x 1.2
Standards
3EE surge arresters conform to the following specifications
and recommendations:
IEC 60099-4
3EF1 and 3EF3 surge limiters are special devices which are
not described by any of the standards applicable today.
However, they are designed, manufactured and tested to a
large extent in accordance with IEC 60099-4.
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Equipment SelectionContents
Contents Page
Equipment Selection
Ordering data and configuration example
Selection of 3EE arresters:
Arresters for motors
Arresters for generators
Arresters for furnace transformers
Accessories for arresters
Selection of 3EF limiters:
Voltage level 3.6 kV
Voltage level 4.8 kV
Voltage level 7.2 kV
Voltage level 12 kV
Voltage level 15 kV
13
14
15
18
20
21
22
22
22
22
22
3EE surge arrester
R-HG21-101.eps
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Equipment SelectionOrdering data and configuration example
Order number structure
The surge arresters and surge limiters are described by an
order number consisting of 8 to 11 digits. The positions 12
to 16 which are normally used for the 16-digit order number
are not required.
Special versions ()
There are special arrester versions available. In this case, -Z
is added to the order number and a descriptive code for the
special version follows (6-arrester connection, or suspended
respectively horizontal installation).
a:alphabetical n:numerical
Position: 1 2 3 4 5 6 7 8 9 10 11
Order No.: 3 E a n n n n n a a n
Primary part
1st position Superior groupSwitching devices
2nd position Main groupOvervoltage protection devices
3rd position SubgroupMachine and special arresters/limiters
4th to11th position4th to 9th position
Basic equipmentArrester ratingsLimiter ratings
Components for special versions ()
Initiated with -ZTypeof special version in clear text
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Arresters for motors Position: 1 2 3 4 5 6 7 8 9 10 11
Order No.: 3 E E 2
Maximum continuousoperating voltage
Rated v oltage Short-circuitcurrent capability
Energy absorptioncapacity
Uc Ur (0.2 s)
kV kV kA kJ / kV4.5 5.6 50 8 3 E E 2 0 5 6 1 A A 0
63 8 3 E E 2 0 5 6 1 A B 0
100 8 3 E E 2 0 5 6 1 A C 0
200 8 3 E E 2 0 5 6 1 A D 0
6 7.5 50 8 3 E E 2 0 7 5 1 A A 0
63 8 3 E E 2 0 7 5 1 A B 0
100 8 3 E E 2 0 7 5 1 A C 0
200 8 3 E E 2 0 7 5 1 A D 0
7.2 9 50 8 3 E E 2 0 9 0 1 A A 0
63 8 3 E E 2 0 9 0 1 A B 0
100 8 3 E E 2 0 9 0 1 A C 0
200 8 3 E E 2 0 9 0 1 A D 0
9.6 12 50 8 3 E E 2 1 2 0 1 A A 0
10 3 E E 2 1 2 0 2 A A 0
63 8 3 E E 2 1 2 0 1 A B 0
10 3 E E 2 1 2 0 2 A B 0
100 8 3 E E 2 1 2 0 1 A C 0
10 3 E E 2 1 2 0 2 A C 0
200 8 3 E E 2 1 2 0 1 A D 0
10 3 E E 2 1 2 0 2 A D 0
300 8 3 E E 2 1 2 0 1 A E 110 3 E E 2 1 2 0 2 A E 1
12 15 50 8 3 E E 2 1 5 0 1 A A 0
10 3 E E 2 1 5 0 2 A A 0
63 8 3 E E 2 1 5 0 1 A B 0
10 3 E E 2 1 5 0 2 A B 0
100 8 3 E E 2 1 5 0 1 A C 0
10 3 E E 2 1 5 0 2 A C 0
200 8 3 E E 2 1 5 0 1 A D 0
10 3 E E 2 1 5 0 2 A D 0
300 8 3 E E 2 1 5 0 1 A E 1
10 3 E E 2 1 5 0 2 A E 1
15 19 50 8 3 E E 2 1 9 0 1 A A 0
10 3 E E 2 1 9 0 2 A A 0
63 8 3 E E 2 1 9 0 1 A B 0
Equipment SelectionSelection of 3EE arresters
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Equipment SelectionSelection of 3EE arresters
Arresters for motors Position: 1 2 3 4 5 6 7 8 9 10 11
Order No.: 3 E E 2
Maximum continuousoperating voltage
Rated v oltage Short-circuitcurrent capability
Energy absorptioncapacity
Uc Ur (0.2 s)
kV kV kA kJ / kV18 23 50 8 3 E E 2 2 3 0 1 A A 0
10 3 E E 2 2 3 0 2 A A 0
63 8 3 E E 2 2 3 0 1 A B 0
10 3 E E 2 2 3 0 2 A B 0
100 8 3 E E 2 2 3 0 1 A C 0
10 3 E E 2 2 3 0 2 A C 0
200 8 3 E E 2 2 3 0 1 A D 0
10 3 E E 2 2 3 0 2 A D 0
300 8 3 E E 2 2 3 0 1 A E 1
10 3 E E 2 2 3 0 2 A E 1
22 27 50 8 3 E E 2 2 7 0 1 A A 0
10 3 E E 2 2 7 0 2 A A 0
63 8 3 E E 2 2 7 0 1 A B 0
10 3 E E 2 2 7 0 2 A B 0
100 8 3 E E 2 2 7 0 1 A C 0
10 3 E E 2 2 7 0 2 A C 0
200 8 3 E E 2 2 7 0 1 A D 0
10 3 E E 2 2 7 0 2 A D 0
300 8 3 E E 2 2 7 0 1 A E 1
10 3 E E 2 2 7 0 2 A E 1
24 30 50 8 3 E E 2 3 0 0 1 A A 010 3 E E 2 3 0 0 2 A A 0
63 8 3 E E 2 3 0 0 1 A B 0
10 3 E E 2 3 0 0 2 A B 0
100 8 3 E E 2 3 0 0 1 A C 0
10 3 E E 2 3 0 0 2 A C 0
200 8 3 E E 2 3 0 0 1 A D 0
10 3 E E 2 3 0 0 2 A D 0
300 8 3 E E 2 3 0 0 1 A E 1
10 3 E E 2 3 0 0 2 A E 1
27 34 50 8 3 E E 2 3 4 0 1 A A 0
10 3 E E 2 3 4 0 2 A A 0
63 8 3 E E 2 3 4 0 1 A B 0
10 3 E E 2 3 4 0 2 A B 0
100 8 3 E E 2 3 4 0 1 A C 0
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Equipment SelectionSelection of 3EE arresters
2
Arresters for motors Position: 1 2 3 4 5 6 7 8 9 10 11
Order No.: 3 E E 2
Maximum continuousoperating voltage
Rated v oltage Short-circuitcurrent capability
Energy absorptioncapacity
Uc Ur (0.2 s)
kV kV kA kJ / kV30 38 50 8 3 E E 2 3 8 0 1 A A 0
10 3 E E 2 3 8 0 2 A A 0
63 8 3 E E 2 3 8 0 1 A B 0
10 3 E E 2 3 8 0 2 A B 0
100 8 3 E E 2 3 8 0 1 A C 0
10 3 E E 2 3 8 0 2 A C 0
200 8 3 E E 2 3 8 0 1 A D 0
10 3 E E 2 3 8 0 2 A D 0
300 8 3 E E 2 3 8 0 1 A E 1
10 3 E E 2 2 8 0 2 A E 1
36 45 50 8 3 E E 2 4 5 0 1 A A 0
10 3 E E 2 4 5 0 2 A A 0
63 8 3 E E 2 4 5 0 1 A B 0
10 3 E E 2 4 5 0 2 A B 0
100 8 3 E E 2 4 5 0 1 A C 0
10 3 E E 2 4 5 0 2 A C 0
200 8 3 E E 2 4 5 0 1 A D 0
10 3 E E 2 4 5 0 2 A D 0
300 8 3 E E 2 4 5 0 1 A E 1
10 3 E E 2 4 5 0 2 A E 1
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Equipment SelectionSelection of 3EE arresters
Arresters for generators Position: 1 2 3 4 5 6 7 8 9 10 11
Order No.: 3 E E 2
Maximum continuousoperating voltage
Rated v oltage Short-circuitcurrent capability
Energy absorptioncapacity
Uc Ur (0.2 s)
kV kV kA kJ / kV4.5 5.6 50 8 3 E E 2 0 5 6 1 B A 0
63 8 3 E E 2 0 5 6 1 B B 0
100 8 3 E E 2 0 5 6 1 B C 0
200 8 3 E E 2 0 5 6 1 B D 0
6 7.5 50 8 3 E E 2 0 7 5 1 B A 0
63 8 3 E E 2 0 7 5 1 B B 0
100 8 3 E E 2 0 7 5 1 B C 0
200 8 3 E E 2 0 7 5 1 B D 0
7.2 9 50 8 3 E E 2 0 9 5 1 B A 0
63 8 3 E E 2 0 9 0 1 B B 0
100 8 3 E E 2 0 9 0 1 B C 0
200 8 3 E E 2 0 9 0 1 B D 0
9.6 12 50 8 3 E E 2 1 2 0 1 B A 0
10 3 E E 2 1 2 0 2 B A 0
63 8 3 E E 2 1 2 0 1 B B 0
10 3 E E 2 1 2 0 2 B B 0
100 8 3 E E 2 1 2 0 1 B C 0
10 3 E E 2 1 2 0 2 B C 0
200 8 3 E E 2 1 2 0 1 B D 0
10 3 E E 2 1 2 0 2 B D 0
300 8 3 E E 2 1 2 0 1 B E 110 3 E E 2 1 2 0 2 B E 1
12 15 50 8 3 E E 2 1 5 0 1 B A 0
10 3 E E 2 1 5 0 2 B A 0
63 8 3 E E 2 1 5 0 1 B B 0
10 3 E E 2 1 5 0 2 B B 0
100 8 3 E E 2 1 5 0 1 B C 0
10 3 E E 2 1 5 0 2 B C 0
200 8 3 E E 2 1 5 0 1 B D 0
10 3 E E 2 1 5 0 2 B D 0
300 8 3 E E 2 1 5 0 1 B E 1
10 3 E E 2 1 5 0 2 B E 1
15 19 50 8 3 E E 2 1 9 0 1 B A 0
10 3 E E 2 1 9 0 2 B A 0
63 8 3 E E 2 1 9 0 1 B B 0
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Arresters for generators Position: 1 2 3 4 5 6 7 8 9 10 11
Order No.: 3 E E 2
Maximum continuousoperating voltage
Rated v oltage Short-circuitcurrent capability
Energy absorptioncapacity
Uc Ur (0.2 s)
kV kV kA kJ / kV18 23 50 8 3 E E 2 2 3 0 1 B A 0
10 3 E E 2 2 3 0 2 B A 0
63 8 3 E E 2 2 3 0 1 B B 0
10 3 E E 2 2 3 0 2 B B 0
100 8 3 E E 2 2 3 0 1 B C 0
10 3 E E 2 2 3 0 2 B C 0
200 8 3 E E 2 2 3 0 1 B D 0
10 3 E E 2 2 3 0 2 B D 0
300 8 3 E E 2 2 3 0 1 B E 1
10 3 E E 2 2 3 0 2 B E 1
22 27 50 8 3 E E 2 2 7 0 1 B A 0
10 3 E E 2 2 7 0 2 B A 0
63 8 3 E E 2 2 7 0 1 B B 0
10 3 E E 2 2 7 0 2 B B 0
100 8 3 E E 2 2 7 0 1 B C 0
10 3 E E 2 2 7 0 2 B C 0
200 8 3 E E 2 2 7 0 1 B D 0
10 3 E E 2 2 7 0 2 B D 0
300 8 3 E E 2 2 7 0 1 B E 1
10 3 E E 2 2 7 0 2 B E 1
24 30 50 8 3 E E 2 3 0 0 1 B A 010 3 E E 2 3 0 0 2 B A 0
63 8 3 E E 2 3 0 0 1 B B 0
10 3 E E 2 3 0 0 2 B B 0
100 8 3 E E 2 3 0 0 1 B C 0
10 3 E E 2 3 0 0 2 B C 0
200 8 3 E E 2 3 0 0 1 B D 0
10 3 E E 2 3 0 0 2 B D 0
300 8 3 E E 2 3 0 0 1 B E 1
10 3 E E 2 3 0 0 2 B E 1
27 34 50 8 3 E E 2 3 4 0 1 B A 0
10 3 E E 2 3 4 0 2 B A 0
63 8 3 E E 2 3 4 0 1 B B 0
10 3 E E 2 3 4 0 2 B B 0
100 8 3 E E 2 3 4 0 1 B C 0
2
Equipment Selection
Selection of 3EE arresters
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Equipment Selection
Selection of 3EE arresters
Arresters for generators Position: 1 2 3 4 5 6 7 8 9 10 11
Order No.: 3 E E 2
Maximum continuousoperating voltage
Rated v oltage Short-circuitcurrent capability
Energy absorptioncapacity
Uc Ur (0.2 s)
kV kV kA kJ / kV30 38 50 8 3 E E 2 3 8 0 1 B A 0
10 3 E E 2 3 8 0 2 B A 0
63 8 3 E E 2 3 8 0 1 B B 0
10 3 E E 2 3 8 0 2 B B 0
100 8 3 E E 2 3 8 0 1 B C 0
10 3 E E 2 3 8 0 2 B C 0
200 8 3 E E 2 3 8 0 1 B D 0
10 3 E E 2 3 8 0 2 B D 0
300 8 3 E E 2 3 8 0 1 B E 1
10 3 E E 2 3 8 0 2 B E 1
36 45 50 8 3 E E 2 4 5 0 1 B A 0
10 3 E E 2 4 5 0 2 B A 0
63 8 3 E E 2 4 5 0 1 B B 0
10 3 E E 2 4 5 0 2 B B 0
100 8 3 E E 2 4 5 0 1 B C 0
10 3 E E 2 4 5 0 2 B C 0
200 8 3 E E 2 4 5 0 1 B D 0
10 3 E E 2 4 5 0 2 B D 0
300 8 3 E E 2 4 5 0 1 B E 1
10 3 E E 2 4 5 0 2 B E 1
Arresters for furnace transformers
Maximum continuousoperating voltage
Rated v oltage Short-circuitcurrent capability
Energy absorptioncapacity
Uc Ur (0.2 s)
kV kV kA kJ / kV
17.5 22 50 10 3 E E 2 2 2 0 2 C A 0
24 30 50 10 3 E E 2 3 0 0 2 C A 0
26 32 50 10 3 E E 2 3 2 0 2 C A 0
29 36 50 10 3 E E 2 3 6 0 2 C A 0
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Equipment SelectionSelection of 3EE arresters
Designation Remarks Order No.
Bolt terminal Suitable forarrestertype 3EEaccording to dimensiondrawing 1 or 2 (see chapter Technical data, page 26)
30 mm,complete withset of screws
3EX6 006
Flat terminal Suitable forarrestertype 3EEaccording to dimensiondrawing 1 or 2 (see chapter Technical data, page 26)
complete with setof screws 3EX6034
Suitable forarrestertype 3EEaccording to dimensiondrawing 3 (see chapter Technical data, page 26)
complete with setof screws 3EX7008
Accessories for arresters
The order numbers are applicable to surge arresters and
surge limiters of current manufacture. When components or
spare parts are being ordered for existing arresters and
limiters, always quote the type designation and the year of
manufacture of the arrester or limiter to be sure to get the
correct delivery.
Note: Spare parts must only be replaced by instructed
personnel.
3EE Surge Arresters3EF Surge Limiters
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Equipment Selection
Selection of 3EF limiters
3.6 kV Position: 1 2 3 4 5 6 7 8 950/60 Hz Order No.: 3 E F
Rated v oltage Continuous o peratingvoltage
Energy absorptioncapacity
Ur Uc
kV kV kJ / kV
3.6 2.9 0.8 3 E F 1 0 3 6 0 A
3.6 3.2 4 3 E F 3 0 3 6 0
4.8 kV50/60 Hz
Ur Uc
kV kV kJ / kV
4.8 3.6 0.8 3 E F 1 0 4 8 0 A4.8 4.1 4 3 E F 3 0 4 8 0
7.2 kV50/60 Hz
Ur Uc
kV kV kJ / kV
7.2 5.4 0.8 3 E F 1 0 7 2 0 A
7.2 6.1 4 3 E F 3 0 7 2 0
7.2 4.9 4 3 E F 3 0 7 2 1
12 kV50/60 Hz
Ur Uc
kV kV kJ / kV
12 9 0.8 3 E F 1 1 2 0 0 A
12 10.2 4 3 E F 3 1 2 0 0
12 8.2 4 3 E F 3 1 2 0 1
2
3EE Surge Arresters3EF Surge Limiters
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Technical DataContents
3
Contents Page
Technical Data
Electrical data, dimensions and weights:Arresters
Limiters
23
24
27
3EE2, flat terminal
R-HG21-105.eps
3EE Surge Arresters3EF Surge Limiters
Technical Data 3EE Surge Arresters
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3
Technical Data
Electrical data, dimensions and weights: 3EE arresters
Maximum residual voltageat discharge current with
Ur Uc (0.2 s) Up
kV kV kA kJ/kV kV cr kV cr kV cr kV cr kV cr kV kV kV mm mm kg
3EE2 056-A0 5.6 4.5 50 8 11.5 12 13 14 16 150 80 65 255 605 1 25
3EE2 056-B0 5.6 4.5 63 8 11.5 12 13 14 16 150 80 65 255 605 1 25
3EE2 056-C0 5.6 4.5 100 8 11.5 12 13 14 16 150 80 65 255 605 1 25
3EE2 056-D0 5.6 4.5 200 8 11.5 12 13 14 16 150 80 65 255 605 1 25
3EE2 075-A0 7.5 6 50 8 15.5 16 18 19 21 150 80 65 255 605 1 25
3EE2 075-B0 7.5 6 63 8 15.5 16 18 19 21 150 80 65 255 605 1 25
3EE2 075-C0 7.5 6 100 8 15.5 16 18 19 21 150 80 65 255 605 1 25
3EE2 075-D0 7.5 6 200 8 15.5 16 18 19 21 150 80 65 255 605 1 25
3EE2 090-A0 9 7.2 50 8 18.5 19.5 22 23 26 150 80 65 255 605 1 25
3EE2 090-B0 9 7.2 63 8 18.5 19.5 22 23 26 150 80 65 255 605 1 25
3EE2 090-C0 9 7.2 100 8 18.5 19.5 22 23 26 150 80 65 255 605 1 25
3EE2 090-D0 9 7.2 200 8 18.5 19.5 22 23 26 150 80 65 255 605 1 25
3EE2 120-A0 12 9.6 50 8/10 25 26 29 31 35 150 80 65 255 605 1 25
3EE2 120-B0 12 9.6 63 8/10 25 26 29 31 35 150 80 65 255 605 1 25
3EE2 120-C0 12 9.6 100 8/10 25 26 29 31 35 150 80 65 255 605 1 25
3EE2 120-D0 12 9.6 200 8/10 25 26 29 31 35 150 80 65 255 605 1 25
3EE2 120-E1 12 9.6 300 8/10 25 26 29 31 35 220 105 90 360 640 3 75
3EE2 150-A0 15 12 50 8/10 31.5 33 37 39 44 150 80 65 255 605 1 30
3EE2 150-B0 15 12 63 8/10 31.5 33 37 39 44 150 80 65 255 605 1 30
3EE2 150-C0 15 12 100 8/10 31.5 33 37 39 44 150 80 65 255 605 1 303EE2 150-D0 15 12 200 8/10 31.5 33 37 39 44 150 80 65 255 605 1 30
3EE2 150-E1 15 12 300 8/10 31.5 33 37 39 44 220 105 90 360 640 3 75
3EE2 190A0 19 15 50 8/10 39 5 41 49 49 55 150 80 65 255 605 1 30
Ratedvoltage
Maximum
continuousoperatingvoltage
Short-circuitcurrentcapability
Energyabsorptioncapacity
0.5
kA
waveshape30/6
0s
1kA
waveshape30/6
0s
5kA
waveshape8/20
s
10kA
waveshape8/20
s
20kA
waveshape8/20
s
Ratedlightningimpulsewithstandvoltage
Ratedpower-fre
quencywithstandvoltage,
dry
Ratedpower-fre
quencywithstandvoltage,
underrain
Arcingdistance
Creepagedistan
ce
Catalogdimensiondrawing(seepage26)
Weights
OrderNo.
3EE Surge Arresters3EF Surge Limiters
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3
Technical DataElectrical data, dimensions and weights: 3EE arresters
Maximum residual voltageat discharge current with
Ur Uc (0.2 s) Up
kV kV kA kJ/kV kV cr kV cr kV cr kV cr kV cr kV kV kV mm mm kg
3EE2 300-A0 30 24 50 8/10 62 64 72 77 86 240 130 110 435 1095 2 40
3EE2 300-2CA0 30 24 50 10 59 61 66 72 80 150 80 65 255 605 1 30
3EE2 300-B0 30 24 63 8/10 62 64 72 77 86 240 130 110 435 1095 2 40
3EE2 300-C0 30 24 100 8/10 62 64 72 77 86 240 130 110 435 1095 2 40
3EE2 300-D0 30 24 200 8/10 62 64 72 77 86 204 130 110 435 1095 2 40
3EE2 300-E1 30 24 300 8/10 62 64 72 77 86 220 105 90 360 640 3 85
3EE2 320-A0 32 24 50 10 63 65 73 77 86 150 80 65 255 605 1 30
3EE2 340-A0 34 27 50 8/10 70 73 82 87 97 240 130 110 435 1095 2 40
3EE2 340-B0 34 27 63 8/10 70 73 82 87 97 240 130 110 435 1095 2 40
3EE2 340-C0 34 27 100 8/10 70 73 82 87 97 240 130 110 435 1095 2 40
3EE2 340-D0 34 27 200 8/10 70 73 82 87 97 240 130 110 435 1095 2 40
3EE2 340-E1 34 27 300 8/10 70 73 82 87 97 240 105 90 360 640 3 85
3EE2 360-A0 36 29 50 10 71 74 82 87 97 240 130 110 435 1095 2 40
3EE2 380-A0 38 30 50 8/10 78 81 91 97 109 240 130 110 435 1095 2 40
3EE2 380-B0 38 30 63 8/10 78 81 91 97 109 240 130 110 435 1095 2 40
3EE2 380-C0 38 30 100 8/10 78 81 91 97 109 240 130 110 435 1095 2 40
3EE2 380-D0 38 30 200 8/10 78 81 91 97 109 240 130 110 435 1095 2 40
3EE2 380-E1 38 30 300 8/10 78 81 91 97 109 220 105 90 360 640 3 85
3EE2 450-A0 45 36 50 8/10 92 96 108 115 129 240 130 110 435 1095 2 40
3EE2 450-2CA0 45 36 50 10 88 91 102 108 120 240 130 110 435 1095 2 403EE2 450-B0 45 36 50 8/10 92 96 108 115 129 240 130 110 435 1095 2 40
3EE2 450-C0 45 36 50 8/10 92 96 108 115 129 240 130 110 435 1095 2 40
3EE2 450 D0 45 36 50 8/10 92 96 108 115 129 240 130 110 435 1095 2 40
3EE Surge Arresters3EF Surge Limiters
Ratedvoltage
Maximum
continuousoperatingvoltage
Short-circuitcur
rentcapability
Energyabsorptioncapacity
0.5
kA
waveshape30/6
0s
1kA
waveshape30/6
0s
5kA
waveshape8/20
s
10kA
waveshape8/20
s
20kA
waveshape8/20
s
Ratedlightningimpulsewithstandvoltage
Ratedpower-fre
quencywithstandvoltage,
dry
Ratedpower-fre
quencywithstandvoltage,
underrain
Arcingdistance
Creepagedistan
ce
Catalogdimensiondrawing(seepage26)
Weights
OrderNo.
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Technical Data3EE Surge Arresters
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3Dimension drawings for 3EF surge limiters
Technical DataElectrical data, dimensions and weights: 3EF limiters
Ur Uc Ua Ures
kV kV kV kV kJ/kV kg
3EF1 036-0A 3.6 2.9 8 8 0.8 0.73 4
3EF1 048-0A 4.8 3.6 10 10 0.8 0.73 4
3EF1 072-0A 7.2 5.4 15 15 0.8 0.73 4
3EF1 120-0A 12 9 25 25 0.8 1.2 5
3EF1 150-0A 15 11 31 31 0.8 1.2 5
3EF3 036-0 3.6 3.2 8 8 4 3 6
3EF3 048-0 4.8 4.1 10 10 4 3.5 6
3EF3 072-0 7.2 6.1 15 15 4 4 6
3EF3 072-1 7.2 4.9 12 12 4 4 6
3EF3 120-0 12 10.2 25 25 4 5 6
3EF3 120-1 12 8.2 20 20 4 5 6
OrderNo
.
Ratedvoltage
Continuo
us
operating
voltage
Switchingimpulsesparkover
voltage(wave5/200s)
Residualvoltageatimpulse
current0
.5kA(wave30/60s)
Energyabsorption
capacity
Weights
Catalogd
imensiondrawing
(seebelo
w)
g3EF Surge Limiters
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3EF Surge Limiters
Annex3EE Surge Arresters
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Contents
Contents Page
Annex
Inquiry form
Configuration instructions
Configuration aid
29
30
31
Foldout page
Switchgear Factory in Berlin, Germany
R-HG11-180.eps
3EF Surge Limiters
Annex 3EE Surge Arresters3EF S Li i
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Inquiry form
Pleasecopy, fill in and return to yourSiemens partner.
Inquiry concerning
3EE surge arresters
3EF surge limiters
Please
Submit an offer Call us Visit us
Your address
Company
Dept.
Name
Street
Postal code/city
Phone
Fax
E-mail
Technical data of 3EE surge arrestersOthervalues
Rated voltage 5.6 kV
15kV
27kV 36kV
7.5 kV
19kV
30kV 38kV
9 kV
22kV
32kV 45kV
12kV
23kV
34kV 52kV
_ _ _ kV
Maximum continuous
operating voltage
4.5 kV
12kV
22kV
29kV
6 kV
15kV
24kV
30kV
7.2 kV
17.5 kV
26kV
36kV
9.6 kV
18kV
27kV
42kV
_ _ _ kV
Earthing type Solidly earthed
neutral
Isolated
neutral
Impedance-
earthedneutral
Resonant-
earthedneutral
Short-circuit current capability 50kA/0.2 s
200kA/0.2s
63kA/0.2 s 100kA/0.2s
300kA/0.2s
Energy absorption capacity 8 kJ/kV 10 kJ/kV _ _ _ kJ/kV
Application Motor Generator Furnace transformer
Technical data of 3EF surge limitersOthervalues
Rated voltage 3.6 kV
12kV
4.8 kV
15kV
7.2 kV
_ _ _ kV
Maximum continuous
operating voltage
2.9 kV
4.9 kV
9 kV
3.2 kV
5.4 kV
10.2 kV
3.6 kV
6.1 kV
11kV
4.1 kV
8.2 kV
_ _ _ kV
Energy absorption capacity 0.8kJ/kV 4 kJ/kV _ _ _ kJ/kV
Application Cable system
15kV
Power station or extensive
bl
3EF Surge Limiters
For configuration of yoursurge arrester/limiter
You prefer to configure your surge arrester/limiter on your own?Please follow the steps for configuration and enter the order number in the fold-out configuration aid.
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Instructions for selection
Selection of a surge arrester (see pages 15 to 20)
Please specify the following ratings: Possible options
Rated voltage(Ur) Ur: 5.6kVto52kV
Short-circuit current capability 50 kA/0.2 s to 300 kA/0.2 s
Energy absorption capacity 8 kJ/kV or 10 kJ/kV
Application Motors, generators, furnace transformers
These ratingsdefinethe positions 5 to11 ofthe order number.
Selection of a surge limiter (see page 22)
Please specify the following ratings: Possible options:
Ratedvoltage Ur: 3.6kVto15kV
Maximumcontinuousoperating voltage Uc: 2.9kVto11kV
Energy absorption capacity 8 kJ/kV or 10 kJ/kV
These equipmentfeaturesdefinethepositions4 to9 ofthe order number.
Do you have any further requirements concerning the equipment?
Should you still need more options than the possible equipment, please contact your responsible sales partner.
1 2 3 4 5 6 7 8 9 10 11
3 E
3 E
3 E
3 E
3 E
3 E
3 E
3 E
3 E
3 E
3 E
3 E
3 E
3 E
3 E
3 E
3 E
3 E
3 E
3 E
3 E
3 E
3 E
3 E
3 E
3 E
3 E
Seepage15
to
page22
31SiemensHG 21 2007
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R-HG21-100.t
if
Siemens AG
Power Transmission and Distribution
Medium Voltage Division
Nonnendammallee 104
13623 Berlin
Germany
www.siemens.com/energy
For questions concerning
Power Transmission and Distribution:
You can contact our Cust omer Su pport
Center 24 hours a day, 365 days a year.
Tel.: +49 180/524 70 00
Fax: +49 180/524 24 71
(Charges depending on provider)
E-Mail: [email protected]
www.siemens.com/energy-support
Subject to change without notice
Order No. E50001-K1521-A101-A1-7600
Printed in Germany
Dispo 31601
KG 11.07 4.0 32 En
102813 6101/6492
The information in this document contains general descriptions of the technical options available, which do not always have to be present in individual cases.
The required features should therefore be specified in each individual case at the time of closing the contract.
If not stated otherwise on the individual pages of this catalog,we reserve the right to include modifications, especially regardingthe stated values, dimensions and weights.Drawings are not binding. All product designations used aretrademarks or product names of Siemens AG or other suppliers.If not stated otherwise, all dimensions in this catalog are givenin mm.
Responsible for
T ec hn ica l c on ten ts : G en er al e di ting :Siemens AG, Dept. PTD M C PPM Siemens AG, Dept. PTD CC MBerlin Erlangen